High polymer material recovery device

Abstract

The invention relates to the technical field of material recovery, in particular to a high polymer material recovery device which comprises a screening recovery box, and a crushing box is arranged on the top surface of the screening recovery box; the screening assembly is arranged in the screening recycling box, and the screening assembly is used for conducting screening treatment on the crushed high polymer materials in the crushing box; and the vibration assembly comprises a driving module and a follow-up vibration module, the driving module is arranged on one side of the screening recycling box, the follow-up vibration module is arranged in the screening assembly, the follow-up vibration module is used for following the screening assembly to conduct vibration sorting, and the driving module is used for driving the follow-up vibration module. Compared with the prior art, by arranging the follow-up module, it is ensured that high polymer materials with different particle sizes smoothly pass through the corresponding screening holes, the grading precision is improved, and the screening process is more efficient and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of material recycling, and particularly to a polymer material recycling device. Background Art

[0002] With the wide application of polymer materials in industrial production and daily life, the problem of waste treatment has become increasingly prominent, becoming an important topic in environmental protection and resource recycling. Polymer materials, such as plastics, rubbers, composite materials, etc., due to their high stability and long degradation period, if not properly treated, will not only cause serious environmental pollution but also waste a large amount of renewable resources. To improve resource utilization rate and reduce the environmental burden, polymer material recycling devices have emerged. Such devices are mainly used for recycling and treating various waste plastics, rubbers, and other polymer materials. After processes such as crushing, screening, cleaning, and sorting, the waste materials are reprocessed and utilized, and are widely used in industries such as plastic recycling, rubber regeneration, and chemical waste treatment. With the progress of technology, modern polymer material recycling devices have been continuously optimized and upgraded, achieving breakthroughs in aspects such as automation, intelligence, and refined sorting, providing a strong guarantee for sustainable development.

[0003] In the prior art, in a polymer material recycling device disclosed in a Chinese patent document with the publication number CN220113782U, it is proposed that two outer cams on the upper side are driven to rotate by a gearbox, driving a swing link to move. At this time, the swing link is restricted by a fixed sleeve as a whole, and the swing link makes a reciprocating motion inside the fixed sleeve, so that the parts restricted in the fixed extrusion plate are crushed, and then enter the collection bucket through the blanking frame for recycling. The overall structure is simple and convenient. However, similar to the traditional method, the gap of the sieve plate of the traditional device is fixed and cannot be dynamically adjusted, resulting in the material (especially viscous polymers or fine powders) being easily blocked in the sieve holes, and frequent shutdowns are required for cleaning. Moreover, the vibration direction of the sieve plate is single (such as only vertical or horizontal vibration), the material dispersion is poor, and it is easy to form accumulation or local overload, reducing the screening rate. Therefore, the present application discloses a polymer material recycling device. Summary of the Invention

[0004] The purpose of the present invention is to provide a polymer material recycling device to solve the problems that the gap of the sieve plate of the traditional device is fixed and cannot be dynamically adjusted, resulting in easy blockage of the sieve holes by the material and the single vibration direction of the sieve plate.

[0005] For the above purposes, the present invention provides a polymer material recycling device, including a screening and recycling box. A crushing box is arranged on the top surface of the screening and recycling box. A crushing feed inlet is arranged above the crushing box. Two rotating rods are rotatably installed inside the crushing box. One side of the rotating rod penetrates through the crushing box, and a pulley is sleeved on the rotating rod penetrating through one side of the crushing box and is connected to an external driving source. Crushing rollers that mesh with each other are sleeved on the outer surfaces of the two rotating rods located inside the crushing box; A screening component is arranged inside the screening and recycling box and is used for screening the polymer materials crushed inside the crushing box; A vibration component, the vibration component includes a driving module and a vibration-following module. The driving module is arranged on one side of the screening and recycling box, and the vibration-following module is arranged inside the screening component. The vibration-following module is used for vibrating and sorting following the screening component, and the driving module is used for driving the vibration-following module.

[0006] Preferably, the screening component includes three groups of installation slots opened on both sides inside the screening and recycling box from top to bottom. A sieve plate body is jointly arranged in each group of installation slots. A screening feed inlet is opened on the top surface of one side of the screening and recycling box and is communicated with the bottom surface of the crushing box. A first discharge port and several second discharge ports are arranged on one side of the screening and recycling box. The first discharge port is communicated with one side of the sieve plate body at the topmost end inside the screening and recycling box, and several second discharge ports are respectively communicated with one side of several sieve plate bodies below inside the screening and recycling box.

[0007] Preferably, a plurality of screening openings are opened on all three sieve plate bodies, and the diameters of the screening openings on the three sieve plate bodies gradually decrease from top to bottom.

[0008] Preferably, all three sieve plate bodies are arranged in a double-layer structure. The sieve plate body includes an upper sieve plate and a lower sieve plate. Installation plates are arranged on both sides of the lower sieve plate. Each group of installation slots is arranged in two. The two installation plates are respectively embedded and installed inside the two installation slots, and a plurality of reset springs are arranged on the top surface of the installation plate and are connected to the inner top surface of the installation slot.

[0009] Preferably, the vibration - following module includes a number of reverse drivers fixedly installed between the upper sieve plate and the lower sieve plate. The reverse driver includes a connection sleeve fixedly installed on one side of the lower sieve plate. An activity sleeve is slidably sleeved on one side of the connection sleeve. A positioning cylinder is arranged in the middle of the activity sleeve. A reverse drive rod is movably installed inside the positioning cylinder. One end of the reverse drive rod is provided with a reverse connecting plate, and the reverse connecting plate is fixedly connected to one side of the upper sieve plate. The other end of the reverse drive rod is provided with a thrust spring, and the other end of the thrust spring is fixedly connected to one side of the reverse drive rod.

[0010] Preferably, a through - slot is penetrated and opened on one side of the positioning cylinder, and a drive - slot is penetrated and opened on one side of the reverse drive rod. The opening length of the through - slot is set to be twice that of the drive - slot. A moving rod is slidably installed inside the drive - slot. One side of the moving rod is arranged in an inclined shape. First trigger blocks are arranged on both sides of the moving rod. Two second trigger blocks adapted to the first trigger blocks are arranged on the inner side of the connection sleeve. The contact surfaces of the first trigger block and the second trigger block are both arranged as inclined surfaces.

[0011] Preferably, the inclined surfaces of the two moving rods are arranged in opposite directions, and the inclined surfaces of the two second trigger blocks are also arranged in opposite directions.

[0012] Preferably, the drive module includes a drive box fixedly installed on one side of the screening and recycling box. A number of groups of sliding grooves are also penetrated and opened on both sides inside the screening and recycling box. Sliding plates are slidably installed in a number of groups of the sliding grooves. Extension plates are arranged on both sides of the sliding plate. A connecting plate connected to one end of a number of the sliding plates is arranged on one side inside the drive box. A lead screw is rotatably installed at the bottom of the drive box. A forward - reverse motor is fixedly installed on one side of the bottom of the drive box, and the output end of the forward - reverse motor is fixedly connected to one end of the lead screw. The connecting plate is in threaded connection with the lead screw. A number of first impact blocks are arranged on the top surface of the extension plate, and a number of second impact blocks adapted to the first impact blocks are arranged at the bottom of the installation plate.

[0013] Preferably, both the first impact block and the second impact block are arranged in a trapezoidal shape, and the first impact block and the second impact block are arranged oppositely.

[0014] Preferably, cleaning curtains are arranged at the bottoms of a number of the sliding plates. The bottom of the cleaning curtain is arranged in a toothed shape, and the cleaning curtain is used to sweep the polymer materials that are not screened downward.

[0015] The beneficial effects of the present invention: 1. This polymer material recycling device is equipped with a follow-up module. Through the impact between the first impact block and the second impact block, the lower sieve plate is driven to move upward. At the same time, the connecting sleeve is triggered to slide towards the movable sleeve, compressing the thrust spring, causing the reverse driving rod to move downward, and then driving the upper sieve plate to move downward closer to the lower sieve plate, forming a two-way synchronous vibration. This design can continuously adjust the sieve plate gap during the screening process, keep the sieve holes unobstructed, prevent material blockage, improve the screening accuracy and stability. Since the thrust spring is used to provide buffering, the sieve plate will not generate a violent impact when being impacted, effectively reducing equipment wear, extending the service life of the sieve plate, and at the same time avoiding material accumulation caused by excessive vibration. The precise control of the reverse driving rod enables the sieve plate to remain stable during the approaching and releasing processes, ensuring uniform distribution of materials and improving the screening quality. In addition, the cooperation of the moving rod and the trigger block enables the sieve plate to automatically adjust the amplitude and frequency according to the material flow state, ensuring that polymer materials of different particle sizes can smoothly pass through the corresponding sieve holes, improving the classification accuracy, and making the screening process more efficient and stable.

[0016] 2. This polymer material recycling device is equipped with a driving module. The positive and reverse motor drives the screw rod to rotate, driving the slide plate to reciprocate in the chute, causing the first impact block to impact the second impact block, thereby realizing the dynamic vibration of the sieve plate, improving the screening efficiency and stability. The reciprocating motion of the slide plate can not only make the sieve plate vibrate continuously, but also drive the cleaning curtain to sweep the unscreened materials, preventing the sieve surface from being blocked and improving the screening accuracy. In addition, the impact action of the driving module is combined with the follow-up vibration module, enabling the sieve plate to approach and release in two directions, enhancing the dispersibility and screening rate of materials during the screening process, ensuring efficient classification of materials of different particle sizes. The adjustable nature of the positive and reverse motor enables the vibration amplitude and frequency of the sieve plate to be optimized according to the material characteristics, reducing problems such as uneven screening or blockage, improving the adaptability and stability of the equipment, while reducing mechanical impact and extending the service life of the equipment. Brief Description of the Drawings

[0017] Figure 1 It is a schematic three-dimensional structure diagram of the first perspective of the present invention; Figure 2 It is a schematic three-dimensional structure diagram of the second perspective of the present invention; Figure 3 It is a schematic internal structure diagram of the crushing box of the present invention; Figure 4 It is a schematic plan structure diagram of the screening and recycling box of the present invention; Figure 5 It is a schematic internal structure diagram of the screening and recycling box of the present invention; Figure 6 It is a schematic structure diagram of the driving module of the sieve plate body of the present invention; Figure 7 For the present invention Figure 6 The enlarged structure diagram at position A in Figure 8 Schematic diagram of the sieve plate body structure of the present invention; Figure 9 Schematic diagram of the reverse driver structure of the present invention; Figure 10 Schematic diagram of the internal structure of the reverse driver of the present invention; Figure 11 For the present invention Figure 10 Enlarged structure diagram at position B in; Figure 12 Schematic plan view of the reverse driver of the present invention.

[0018] The markings in the figure are: 1. Sieving and recycling box; 2. Crushing box; 3. Crushing feed inlet; 4. Rotating rod; 5. Crushing roller; 6. Driving box; 7. Sieving feed inlet; 8. Installation groove; 9. Sieve plate body; 10. Sieving opening; 11. Installation plate; 12. Return spring; 13. Chute; 14. Slide plate; 15. Cleaning curtain; 16. Lead screw; 17. Connecting plate; 18. Reversible motor; 19. Extension plate; 20. First impact block; 21. Second impact block; 22. Upper sieve plate; 23. Lower sieve plate; 24. Reverse driver; 25. Connecting sleeve; 26. Movable sleeve; 27. Positioning cylinder; 28. Reverse drive rod; 29. Thrust spring; 30. Through groove; 31. Moving rod; 32. First trigger block; 33. Second trigger block; 34. Reverse connecting plate; 35. First discharge port; 36. Second discharge port. Detailed implementation manners

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0020] As Figures 1 to 12 shown, the polymer material recycling device includes a sieving and recycling box 1. A crushing box 2 is arranged on the top surface of the sieving and recycling box 1. A crushing feed inlet 3 is arranged above the crushing box 2. Two rotating rods 4 are rotatably installed inside the crushing box 2. One side of the rotating rod 4 penetrates through the crushing box 2 and is provided with a pulley sleeved thereon and connected to an external driving source. The outer surfaces of the two rotating rods 4 located inside the crushing box 2 are both sleeved with mutually meshing crushing rollers 5; a sieving assembly, the sieving assembly is arranged inside the sieving and recycling box 1, and the sieving assembly is used for screening the polymer materials crushed inside the crushing box 2; a vibration assembly, the vibration assembly includes a driving module and a vibration-following module. The driving module is arranged on one side of the sieving and recycling box 1, and the vibration-following module is arranged inside the sieving assembly. The vibration-following module is used for vibrating and sorting following the sieving assembly, and the driving module is used for driving the vibration-following module; After the device is started, the polymer material is put into the inside of the crushing box 2 from the crushing feed port 3. The external drive source drives the rotating rod 4 to rotate, so that the crushing rollers 5 on it run at high speed. The mutually meshing crushing rollers 5 shear, tear and extrude the material to crush the large pieces of material into small particles. The crushed polymer material falls into the screening and recycling box 1 under the action of gravity and enters the screening assembly. At this time, the drive module in the vibration assembly is started to drive the vibration of the vibration module, so that the screening assembly generates high-frequency vibration. The crushed polymer material is screened under the action of the vibration force. Particles of different sizes are separated on the screening mesh surface. The particles that meet the specifications fall through the screen into the recycling area, and the larger particles that do not meet the size requirements are intercepted. During the whole process, the vibration assembly keeps working to prevent material accumulation or blockage, improve the screening efficiency, make the whole recycling process more efficient and stable, and finally realize the precise recycling and reuse of the polymer material.

[0021] As Figures 4 to 6 shown, the screening assembly includes three groups of installation grooves 8 opened on both sides inside the screening and recycling box 1 from top to bottom. Each group of installation grooves 8 is set to be two. A sieve plate body 9 is jointly arranged in each group of installation grooves 8. A screening feed port 7 is opened on the top surface of one side of the screening and recycling box 1 and is communicated with the bottom surface of the crushing box 2. A first discharge port 35 and a number of second discharge ports 36 are arranged on one side of the screening and recycling box 1. The first discharge port 35 is communicated with one side of the sieve plate body 9 at the topmost end inside the screening and recycling box 1, and the number of second discharge ports 36 are respectively communicated with one side of a number of sieve plate bodies 9 below the inside of the screening and recycling box 1. A number of screening holes 10 are opened on the three sieve plate bodies 9, and the diameters of the screening holes 10 on the three sieve plate bodies 9 gradually decrease from top to bottom; After the device is started, the crushing rollers 5 in the crushing box 2 crush the polymer material and then enter the screening and recycling box 1 through the screening feed port 7. The crushed material falls on the topmost sieve plate body 9. The large-particle material cannot pass through the sieve holes due to its large size and slides along the inclined surface of the sieve plate to the first discharge port 35, where it is collected and sent back to the crushing box 2 for secondary crushing. The smaller-particle material falls through the screening holes 10 of the first-layer sieve plate to the subsequent sieve plates. The particles that meet different diameters will be discharged through different second discharge ports 36. During the whole process, the material is graded in turn during the screening process to ensure that the polymer materials of different particle sizes are classified according to size, improve the screening accuracy and recycling efficiency, and at the same time avoid sieve plate blockage and ensure the stable and efficient operation of the screening process.

[0022] As Figures 5 to 9As shown in the figure, the driving module includes a driving box 6 fixedly installed on one side of the screening and recycling box 1. A number of groups of sliding grooves 13 are also penetrated and opened on both sides inside the screening and recycling box 1. A sliding plate 14 is slidably installed in each of the number of groups of sliding grooves 13. Extension plates 19 are arranged on both sides of the sliding plate 14. A connecting plate 17 connected to one end of a number of sliding plates 14 is arranged on one side inside the driving box 6. A lead screw 16 is rotatably installed at the bottom of the driving box 6. A positive and negative motor 18 is fixedly installed on one side at the bottom of the driving box 6. The output end of the positive and negative motor 18 is fixedly connected to one end of the lead screw 16. The connecting plate 17 is threadedly connected to the lead screw 16. A number of first impact blocks 20 are arranged on the top surface of the extension plate 19. A number of second impact blocks 21 adapted to the first impact blocks 20 are arranged at the bottom of the mounting plate 11. Both the first impact block 20 and the second impact block 21 are trapezoidally arranged, and the first impact block 20 and the second impact block 21 are arranged oppositely. A cleaning curtain 15 is arranged at the bottom of each of the number of sliding plates 14. The bottom of the cleaning curtain 15 is tooth-shaped. The cleaning curtain 15 is used to sweep the high molecular materials that are not screened downward; After the equipment is started, the positive and negative motor 18 drives the lead screw 16 to rotate, causing the connecting plate 17 to move axially along the lead screw 16, driving the sliding plate 14 to reciprocate in the sliding groove 13. At this time, the sliding plate 14 drives the cleaning curtain 15 to move with the sliding plate 14 to clean the surface of the sieve plate, prevent material accumulation, and reduce the risk of sieve hole blockage. At the same time, the movement of the sliding plate 14 also drives the extension plate 19, causing the first impact block 20 and the second impact block 21 to produce periodic impacts, providing continuous vibration for the sieve plate, thereby enhancing the screening effect, improving the classification efficiency of high molecular materials. The screened materials fall into the corresponding discharge ports in sequence according to the particle size, realizing precise classification and efficient recycling, and improving the stability and service life of the overall screening device.

[0023] As Figures 8 to 12As shown in the figure, the three sieve plate bodies 9 are all arranged in a double-layer structure. The sieve plate body 9 includes an upper sieve plate 22 and a lower sieve plate 23. Mounting plates 11 are arranged on both sides of the lower sieve plate 23. Each group of mounting grooves 8 is arranged in two. The two mounting plates 11 are respectively embedded and installed inside the two mounting grooves 8. And a plurality of reset springs 12 are arranged on the top surface of the mounting plate 11 and connected to the inner top surface of the mounting groove 8. The vibration module includes a plurality of reverse drivers 24 fixedly installed between the upper sieve plate 22 and the lower sieve plate 23. The reverse driver 24 includes a connection sleeve 25 fixedly installed on one side of the lower sieve plate 23. A movable sleeve 26 is slidably sleeved on one side of the connection sleeve 25. A positioning cylinder 27 is arranged in the middle of the movable sleeve 26. A reverse driving rod 28 is movably installed inside the positioning cylinder 27. One end of the reverse driving rod 28 is provided with a reverse connecting plate 34. The reverse connecting plate 34 is fixedly connected to one side of the upper sieve plate 22. The other end of the reverse driving rod 28 is provided with a thrust spring 29. The other end of the thrust spring 29 is fixedly connected to one side of the reverse driving rod 28. A through groove 30 is penetrated and opened on one side of the positioning cylinder 27. A driving groove is penetrated and opened on one side of the reverse driving rod 28. The opening length of the through groove 30 is set to be twice that of the driving groove. A moving rod 31 is slidably installed inside the driving groove. One side of the moving rod 31 is arranged in an inclined shape. First trigger blocks 32 are arranged on both sides of the moving rod 31. Two second trigger blocks 33 adapted to the first trigger blocks 32 are arranged inside the connection sleeve 25. The contact surfaces of the first trigger blocks 32 and the second trigger blocks 33 are both arranged as inclined surfaces. The inclined surfaces of the two moving rods 31 are arranged in opposite directions. The inclined surfaces of the two second trigger blocks 33 are also arranged in opposite directions; After the device is started, the broken polymer material enters the screening component, and the vibration component starts to work. The forward and reverse motor 18 drives the lead screw 16 to rotate, causing the slide plate 14 to reciprocate within the chute 13. At the same time, it drives the first impact block 20 to impact the second impact block 21, prompting the lower sieve plate 23 to move upward. As the lower sieve plate 23 moves upward, the fixedly installed connecting sleeve 25 moves towards the movable sleeve 26 and compresses the thrust spring 29, causing the reverse drive rod 28 within the positioning cylinder 27 to move downward. The downward movement of the reverse drive rod 28 drives the reverse connecting plate 34 downward, and at the same time drives the upper sieve plate 22 to move downward and approach the lower sieve plate 23. During this process, the second trigger block 33 pushes the first trigger block 32 through its inclined surface, prompting the moving rod 31 to slide in the inclined direction, further driving the reverse drive rod 28 to act, ensuring the alternating movement of the sieve plates approaching and releasing in both directions, realizing the vibration and self-cleaning of the sieve plates. In this way, the vibration cooperation between the upper sieve plate 22 and the lower sieve plate 23 enables the sieve mesh to continuously adjust the gap, effectively preventing the sieve holes from being blocked, improving the screening accuracy and stability, ensuring that polymer materials of different particle sizes can smoothly pass through the corresponding sieve holes, improving the screening efficiency and the operating stability of the device. Through the impact between the first impact block 20 and the second impact block 21, the sieve plates are driven to move in both directions, enabling the material to be evenly distributed during screening, preventing accumulation. At the same time, the vibration function can reduce blockage, enhance the self-cleaning ability of the sieve mesh, and improve the device stability. The structure of the thrust spring 29 and the reverse drive rod 28 enables the sieve plates to have a buffering effect during vibration, reducing the impact force directly received by the sieve plates, reducing wear, and increasing the service life of the device.

[0024] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0025] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A polymer material recycling device, characterized in that, Including: A screening and recycling box (1), on the top surface of the screening and recycling box (1) is provided a crushing box (2), above the crushing box (2) is provided a crushing feed inlet (3), inside the crushing box (2) are rotatably installed two rotating rods (4), one side of the rotating rod (4) penetrates through the crushing box (2), and on the rotating rod (4) penetrating through one side of the crushing box (2) is sleeved a pulley connected to an external driving source, and on the outer surfaces of the two rotating rods (4) located inside the crushing box (2) are sleeved crushing rollers (5) that mesh with each other; A screening assembly, the screening assembly is arranged inside the screening and recycling box (1), and the screening assembly is used for screening the polymer materials crushed inside the crushing box (2); A vibration assembly, the vibration assembly includes a driving module and a vibration-following module, the driving module is arranged on one side of the screening and recycling box (1), the vibration-following module is arranged inside the screening assembly, the vibration-following module is used for vibrating and sorting following the screening assembly, and the driving module is used for driving the vibration-following module.

2. The polymer material recycling device according to claim 1, wherein The screening assembly includes three groups of installation grooves (8) opened on both sides inside the screening and recycling box (1) from top to bottom, in each group of installation grooves (8) is jointly provided a sieve plate body (9), on one side top surface of the screening and recycling box (1) is opened a screening feed inlet (7) communicated with the bottom surface of the crushing box (2), on one side of the screening and recycling box (1) are provided a first discharge port (35) and a plurality of second discharge ports (36), the first discharge port (35) is communicated with one side of the sieve plate body (9) at the topmost inside the screening and recycling box (1), and the plurality of second discharge ports (36) are respectively communicated with one side of the plurality of sieve plate bodies (9) below inside the screening and recycling box (1).

3. The polymer material recycling device according to claim 2, wherein A plurality of screening openings (10) are opened on the three sieve plate bodies (9), and the diameters of the screening openings (10) on the three sieve plate bodies (9) gradually decrease from top to bottom.

4. The polymer material recycling device according to claim 3, characterized in that, The three sieve plate bodies (9) are all arranged in a double-layer structure, the sieve plate body (9) includes an upper sieve plate (22) and a lower sieve plate (23), on both sides of the lower sieve plate (23) are provided mounting plates (11), each group of installation grooves (8) is provided with two, and the two mounting plates (11) are respectively embedded and installed inside the two installation grooves (8), and on the top surface of the mounting plate (11) are provided a plurality of reset springs (12) connected to the inner top surface of the installation groove (8).

5. The polymer material recycling device according to claim 4, wherein, The vibration - following module includes a number of reverse drivers (24) fixedly installed between the upper sieve plate (22) and the lower sieve plate (23). The reverse driver (24) includes a connection sleeve (25) fixedly installed on one side of the lower sieve plate (23). A movable sleeve (26) is slidably sleeved on one side of the connection sleeve (25). A positioning cylinder (27) is arranged in the middle of the movable sleeve (26). A reverse drive rod (28) is movably installed inside the positioning cylinder (27). One end of the reverse drive rod (28) is provided with a reverse connecting plate (34), and the reverse connecting plate (34) is fixedly connected to one side of the upper sieve plate (22). The other end of the reverse drive rod (28) is provided with a thrust spring (29), and the other end of the thrust spring (29) is fixedly connected to one side of the reverse drive rod (28).

6. The polymer material recycling device according to claim 5, characterized in that, A through - slot (30) is penetrated and opened on one side of the positioning cylinder (27). A drive slot is penetrated and opened on one side of the reverse drive rod (28). The opening length of the through - slot (30) is set to be twice that of the drive slot. A moving rod (31) is slidably installed inside the drive slot. One side of the moving rod (31) is inclined. First trigger blocks (32) are arranged on both sides of the moving rod (31). Two second trigger blocks (33) adapted to the first trigger blocks (32) are arranged inside the connection sleeve (25). The contact surfaces of the first trigger blocks (32) and the second trigger blocks (33) are both set as inclined surfaces.

7. The polymer material recycling device according to claim 6, characterized in that, The inclined surfaces of the two moving rods (31) are set in opposite directions, and the inclined surfaces of the two second trigger blocks (33) are also set in opposite directions.

8. The polymer material recycling device according to claim 7, wherein The drive module includes a drive box (6) fixedly installed on one side of the screening and recycling box (1). A number of groups of sliding grooves (13) are also penetrated and opened on both sides inside the screening and recycling box (1). Slide plates (14) are slidably installed in each of the number of groups of sliding grooves (13). Extension plates (19) are arranged on both sides of the slide plate (14). A connecting plate (17) connected to one end of each of the number of slide plates (14) is arranged on one side inside the drive box (6). A lead screw (16) is rotatably installed at the bottom of the drive box (6). A positive - and - reverse motor (18) is fixedly installed on one side of the bottom of the drive box (6). The output end of the positive - and - reverse motor (18) is fixedly connected to one end of the lead screw (16). The connecting plate (17) is threadedly connected to the lead screw (16). A number of first impact blocks (20) are arranged on the top surface of the extension plate (19). A number of second impact blocks (21) adapted to the first impact blocks (20) are arranged at the bottom of the mounting plate (11).

9. The polymer material recycling device according to claim 8, characterized in that, Both the first impact block (20) and the second impact block (21) are trapezoid - shaped and are arranged oppositely.

10. The polymer material recycling device according to claim 9, characterized in that, A cleaning curtain (15) is provided at the bottom of each of several of the skateboards (14). The bottom of the cleaning curtain (15) is provided in a toothed shape. The cleaning curtain (15) is used to sweep the polymer materials that have not been screened downward.

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